Clevis.



PATBNTED MAY 22, 1906.

H. KRUSB.v

LEVIS.

APPLICATION FILED JUNE 21.1905.

ATTY

mnnnv/ s Gamm ca. Phowvmwocmpusws, wAsnmswf: n c4 UNITED STATES PATENT OFFICE.

CLEVIS.

No.s21,511.

Specification of Letters Patent.

Patented May 22, 1906.

Application filed June 21,1905. Serial No. 266,262.

To L7/Z lof/1,0m, t nea/y concern:

Be it known that I, HERMAN KRUsE, acitizen of the United States, residing at Campbell, county of Wilkin, and State of Minnesota, have invented a certain new and useful Improvement in Clevises, of which the following is a specification.

My invention relates to a new and useful improvement in clevises, and has for its object to provide a clevis in which the pin will be secured in place by a spring-bolt, so as to guard against accidental displacement ofthe pin and do away with the necessity of nuts threaded upon the same.

With these ends in view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those sklled in the art to which this invention appertains may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accompanying drawings, forming a part of this speciiication, in which- Figure l is a side elevation of my improved clevis, portions of the same being broken away and shown in section and the pin being shown removed in dotted lines; Fig. 2, a plan view of the clevis with the pin removed.

A represents the body of the clevis, which is the usual U-shape frame.

B is the pin which extends downward through the outer ends of the U-shape frame in the usual manner. The head of the pin B is provided with a downwardly-extending portion B', which fits within a recess formed in the upper leg of the frame A. In the upper leg of said frame is also arranged a recess A', in which is arranged a longitudinallysliding bolt C, the end of which normally protrudes into an opening B2, formed through the portion B'. A spring D, interposed between a solid portion of the frame A and a collar formed upon the bolt C, tends to force the bolt into the opening B2, and thus hold the pin against removal until the bolt is retracted. A pin E, secured to or formed with the bolt C, extends upward through the removable plate A2, which closes the recess A', this plate A2 being provided with a slot F, through which the pin E protrudes, and this slot F extends rearwardly a sufficient distance to allow the bolt C to be retracted toremove the end from the opening B2 and release the pin, and then the slot is provided with a side `extension F', into which the pin E may be forced, so as to .hold the bolt in its retracted position. When the bolt is in this retracted position, the pin can be easily removed or inserted; but as soon as the pin E is forced to one side into the longitudinal slot the bolt will instantly spring into position and lock the pin 'B in place. The forward end of the bolt C'is beveled, so that by forcing the pin downward the lower end of the portion B in striking against the beveled'surface 'of the bolt will force the bolt backward until the opening B2 comes in alinement with the bolt. In this way the pin will be locked automatically.

It will thus be seen that by the use of this improved clevis there will be no need of threading a nut upon the lower end of the pin to guard against this accidental displacement, as the bolt will hold the same securely in place; but the pin can be easily removed or inserted at any time desired.

Of course I do not wish to be limited to the exact construction here shown, as slight modifications could be made without departi ng from the sp.' rit of my invention.

Having thus fully described my invention, what I claim as new and useful is- 1. In a clevis, a frame having openings therein, a pfn adapted to pass through said openings, an extension on the pin, and a bolt carried by the frame to engage the extension to hold the pin against displacement.

2. In a clevis, a frame having openings therein, a pfn adapted to pass through said openings, an extension carried by the pin, said extension having an opening therethrough, and a bolt carried by the frame extending within said opening of the extension to hold the pin against displacement.

3. In a clevis, a frame having openings, a pin adapted to pass through said openings, said frame being provided with a recess, a bolt mounted in the recess to engage the pin to hold said pin against displacement, and means to hold said bolt out of engagement with the pin.

4. In a clevis, a frame having openings, said frame being provided with a recess adjacent one of the openings, a pin adapted to pass through the openings of the frame, an extension carried by the pin adapted to lit within the recess of the frame to engage the extension to hold the pin against displacement.

5. In a clevis, a frame having openings, a

IOO

IIO

pin adapted to pass through said openings, l In testimony whereof I have hereunto afsaid frame having a recess, a bolt arranged fixed my signature in the presence of tWo Within the recess and adapted to engage the subscribing Witnesses.

pin and hold it against displacement, a cover I HERMAN KRUSE. 5 for the recess, said cover being provided with Witnesses: a slot, and a pin carried by the bolt and pass- E. H. ELWIN,

ing through the slot of the cover. F. DOW. 

